Blackboard Triangle
Product Code : JL-LEP-10287
The Blackboard Triangle (SKU JL-LEP-10287) is a pair of large set squares for teaching right-triangle relationships on the board. The blackboard triangle set has a 30x60 degree and a 45x45 degree triangle in sturdy, smooth plastic that does not flex, each with a handle, at least 50 cm along the base and 4 mm thick, and marked permanently in centimetres on all sides. Teachers use them to draw parallel and perpendicular lines and standard angles. JaincoLab manufactures the set in India, made as per DepEd guidelines.
Specifications
The set is specified by triangles, material, markings and size: a 30x60 degree and a 45x45 degree triangle in rigid plastic with handles, permanent cm markings on all sides, each with at least a 50 cm base and 4 mm thickness.
| Product | Blackboard Triangle |
| SKU | JL-LEP-10287 |
| Material | Sturdy, smooth, rigid plastic with handle |
| Graduations | Permanent cm markings on all sides |
| 30x60 degree triangle | Base 50 cm (min), thickness 4 mm (min) |
| 45x45 degree triangle | Base 50 cm (min), thickness 4 mm (min) |
| Specification reference | As per DepEd guidelines |
Applications of the blackboard triangle set
The set squares are used for board constructions that pupils then copy with their own instruments. Typical uses are:
- Drawing 30, 45, 60 and 90 degree angles on the board
- Constructing parallel and perpendicular lines
- Teaching properties of special right triangles
- Measuring lengths on the board with the cm markings
Scope of supply and ordering
Each unit is one set of two blackboard triangles, as described in the specification table. The blackboard compass and protractor are separate items; accessories, spares and quantities are confirmed on the quotation.
Minimum order quantity, packing and lead time are confirmed on the quotation for the quantity and destination. JaincoLab supplies schools, bulk orders for education projects, and export shipments to Africa, the Middle East and South and South-East Asia.
Frequently asked questions
Which triangles are in the set?
A 30x60 degree and a 45x45 degree triangle.
How large are they?
Each has a base of at least 50 cm and is at least 4 mm thick.
Are they marked?
Yes. Permanent centimetre markings on all sides.
Related products
Other board instruments:
Browse Laboratory Equipment Products or the range from JaincoLab as a maths lab equipment manufacturer in India.
Request a quote
To order the Blackboard Triangle set, send the quantity and delivery destination through the JaincoLab contact page or email [email protected]. Institutions and contractors buying under a tender can also reach us via the tenders page.
